Lake Constance or Schluchsee: Which is the real giant of the lakes?

Lake Constance or Schluchsee: Which is the real giant of the lakes?

Lake Constance, often referred to as the “Swabian Sea”, is considered one of the largest inland bodies of water in Europe with an area of ​​536 square kilometers. Despite its impressive dimensions, it is not the largest lake in Baden-Württemberg. This is because the state's borders end at the shore of Lake Constance, making the lake legally considered an international body of water.

The body of water extends across Germany, Austria and Switzerland, but there are no clear border treaties outside of the Untersee and the Constance Funnel. International regulations therefore apply to the entire lake area, which makes Lake Constance a special case. Professor Marten Breuer from the University of Konstanz explains that although there are several theories about possible borders, these have not yet been recognized under international law.

Responsibilities and legal framework

When it comes to police jurisdiction, it turns out that responsibilities are clearly defined, despite the lack of definitive boundaries. Michael Behrendt, head of the Friedrichshafen water police station, emphasizes: “There is no lawless area on Lake Constance.” The difficulties caused by the unclear border demarcation are compensated for by a trilateral agreement from 1973, known as the “Convention on Navigation on Lake Constance”.

This agreement regulates cooperation between the authorities of the neighboring countries and ensures that immediate action is taken in the event of accidents or emergency situations. Bruno Schnyder from the Thurgau Maritime Police emphasizes the smooth cooperation between the various authorities: “Communication works perfectly.”

The Schluchsee is the largest lake in Baden-Württemberg

Although Lake Constance is not classified as the largest lake in the state, Schluchsee bears this title. It is located in the municipality of Schluchsee and has a water surface of 5.14 square kilometers. The Schluchsee is a very popular destination, especially during the summer months, where visitors find numerous leisure options, including an adventure pool, an adventure playground as well as various swimming spots and long beaches.

Overall, Lake Constance remains a fascinating body of water with a rich history and international aspects. Despite the confusing legal situation and the various theories about its borders, one thing remains clear: the attractiveness of Lake Constance and its importance for the neighboring states is undisputed.

For more information on this topic, see the report on www.schwaebische.de.